31128840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:117

約数の個数: 256

約数和(自身を含む): 114912000

約数和(自身を除く): 83783160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 37, 38, 40, 41, 45, 54, 57, 60, 72, 74, 76, 82, 90, 95, 108, 111, 114, 120, 123, 135, 148, 152, 164, 171, 180, 185, 190, 205, 216, 222, 228, 246, 270, 285, 296, 328, 333, 342, 360, 369, 370, 380, 410, 444, 456, 492, 513, 540, 555, 570, 615, 666, 684, 703, 738, 740, 760, 779, 820, 855, 888, 984, 999, 1026, 1080, 1107, 1110, 1140, 1230, 1332, 1368, 1406, 1476, 1480, 1517, 1558, 1640, 1665, 1710, 1845, 1998, 2052, 2109, 2214, 2220, 2280, 2337, 2460, 2565, 2664, 2812, 2952, 3034, 3116, 3330, 3420, 3515, 3690, 3895, 3996, 4104, 4218, 4428, 4440, 4551, 4674, 4920, 4995, 5130, 5535, 5624, 6068, 6232, 6327, 6660, 6840, 7011, 7030, 7380, 7585, 7790, 7992, 8436, 8856, 9102, 9348, 9990, 10260, 10545, 11070, 11685, 12136, 12654, 13320, 13653, 14022, 14060, 14760, 15170, 15580, 16872, 18204, 18696, 18981, 19980, 20520, 21033, 21090, 22140, 22755, 23370, 25308, 27306, 28044, 28120, 28823, 30340, 31160, 31635, 35055, 36408, 37962, 39960, 40959, 42066, 42180, 44280, 45510, 46740, 50616, 54612, 56088, 57646, 60680, 63270, 68265, 70110, 75924, 81918, 84132, 84360, 86469, 91020, 93480, 94905, 105165, 109224, 115292, 126540, 136530, 140220, 144115, 151848, 163836, 168264, 172938, 182040, 189810, 204795, 210330, 230584, 253080, 259407, 273060, 280440, 288230, 327672, 345876, 379620, 409590, 420660, 432345, 518814, 546120, 576460, 691752, 759240, 778221, 819180, 841320, 864690, 1037628, 1152920, 1297035, 1556442, 1638360, 1729380, 2075256, 2594070, 3112884, 3458760, 3891105, 5188140, 6225768, 7782210, 10376280, 15564420, 31128840]

約数ペア:

[(1, 31128840), (2, 15564420), (3, 10376280), (4, 7782210), (5, 6225768), (6, 5188140), (8, 3891105), (9, 3458760), (10, 3112884), (12, 2594070), (15, 2075256), (18, 1729380), (19, 1638360), (20, 1556442), (24, 1297035), (27, 1152920), (30, 1037628), (36, 864690), (37, 841320), (38, 819180), (40, 778221), (41, 759240), (45, 691752), (54, 576460), (57, 546120), (60, 518814), (72, 432345), (74, 420660), (76, 409590), (82, 379620), (90, 345876), (95, 327672), (108, 288230), (111, 280440), (114, 273060), (120, 259407), (123, 253080), (135, 230584), (148, 210330), (152, 204795), (164, 189810), (171, 182040), (180, 172938), (185, 168264), (190, 163836), (205, 151848), (216, 144115), (222, 140220), (228, 136530), (246, 126540), (270, 115292), (285, 109224), (296, 105165), (328, 94905), (333, 93480), (342, 91020), (360, 86469), (369, 84360), (370, 84132), (380, 81918), (410, 75924), (444, 70110), (456, 68265), (492, 63270), (513, 60680), (540, 57646), (555, 56088), (570, 54612), (615, 50616), (666, 46740), (684, 45510), (703, 44280), (738, 42180), (740, 42066), (760, 40959), (779, 39960), (820, 37962), (855, 36408), (888, 35055), (984, 31635), (999, 31160), (1026, 30340), (1080, 28823), (1107, 28120), (1110, 28044), (1140, 27306), (1230, 25308), (1332, 23370), (1368, 22755), (1406, 22140), (1476, 21090), (1480, 21033), (1517, 20520), (1558, 19980), (1640, 18981), (1665, 18696), (1710, 18204), (1845, 16872), (1998, 15580), (2052, 15170), (2109, 14760), (2214, 14060), (2220, 14022), (2280, 13653), (2337, 13320), (2460, 12654), (2565, 12136), (2664, 11685), (2812, 11070), (2952, 10545), (3034, 10260), (3116, 9990), (3330, 9348), (3420, 9102), (3515, 8856), (3690, 8436), (3895, 7992), (3996, 7790), (4104, 7585), (4218, 7380), (4428, 7030), (4440, 7011), (4551, 6840), (4674, 6660), (4920, 6327), (4995, 6232), (5130, 6068), (5535, 5624)]